The utility model provides a high-temperature and high-pressure
ball valve, which relates to the technical field of high-temperature and high-pressure ball valves and comprises a valve body, a valve rod is rotatably connected onto the valve body, a
handle is fixedly connected onto the valve rod, a ball body is fixedly connected onto the valve rod, and a fireproof structure is arranged on the valve body. The fireproof structure is mainly composed of two protective shells, the two protective shells are both arranged on the valve body, inorganic
fiber layers are fixedly connected to the interiors of the protective shells,
aerogel layers are fixedly connected to the inorganic
fiber layers, reflecting layers are fixedly connected to the
aerogel layers, supporting layers are fixedly connected to the reflecting layers, and the supporting layers are fixedly connected to the fireproof structure. The utility model solves the problems that the connection point of the
ball valve is usually one of the weakest links in the
system and is easy to become a fire spreading way, and especially in high-risk environments such as
petrochemical engineering, power stations, oil refineries and the like, if additional protection is not carried out on the
ball valve, the sealing is easy to damage, and the medium is easy to leak.